Machine for shaping cap-bands.



No. 797,716. PATENTED AUG.. 22, 1905. J. BRENZINGBR.

MACHINE FOR SHAPING GAP BANDS. APPLIOATION FILED MAY 6. 19o5.

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No. 797,716. PATENTED AUG. 22, 1905.

' J. BRENZINGER.

MAGHNB FOR SHAPING CAF BANDS.

APPLICATION FILED MAY 6, 1905.

2 SHEETS-SHEET 2 l iii I scribed.

UNITED STATEQ PATENT OFFIOE.

JULIUS BRENZINGER, OF MOUNT VERNON, NEWr YORK, ASSIGNOR TO THE MAX AMSMACHINE COMPANY, OF MOUNT VERNON, NEW YORK, A CORPORATION OF NEI/V YORK.

IVIACHIINE FOM SHPING CAP-BANDS.

Specification of Letters Patent.

Patented Aug. 22, 1905.

Application filed May 1905. Serial No. 259,080.

To LLZZ whom if; may concern.-

Be it known that I, J ULIUs BRENZINGER, a citizen of the United States,residing at Mount Vernon, Westchester county, State of New York, haveinvented new and useful Improvements in Machines for Shaping Cap-Bands,of which the following' is a specification.

This invention relates to a machine for providing a straightflat stripof metal with a flange along one edge and for bending' the strip into acurved shape. The band thus formed constitutes the means for securing acover to a bottle, jar, or other receptacle by encircling thebottle-head in such a way that its flange engages beneath the head whileits upwardlyextending fiangeless portion is upset against the cover. Inthis way the band and cover collectively form a cap which by theupsetting operation is securely locked to the bottle.

In the accompanying drawings, Figure l is a front elevation of myimproved machine for shaping cap-bands; Fig. 2, a side elevationthereof; Fig. 3, a horizontal section on line 3 3, Fig. l; Fig. a, adetail of the shaft-bearing; Fig. 5, a section on line 55, Fig. l; Fig.6, an enlarged end view, partly broken away, of the shaping means; Fig.7, a section on line 7 7, Fig. 6. Fig. 8 illustrates the blank to beshaped by the machine; Fig. 9, a side view of the finished band; Fig.10, a section on line 10 lO, Fig. 9; and Fig. 11, a plan of Fig. 9.

The blank A, Fig. 8, having a finger-piece A', is by the machine upsetalong its upper edge to form flange A2 and is also gent into a circularshape with overlappin,5 ends, as shown in Figs. 9 to l1.

To the frame B of the machine are journaled a lower shaft a and an uppershaft Z, such shafts being driven in opposite directions by pulley c andgear-wheels a' b. Upon shaft ci is mounted a cylindrical roller (Z, thehub cZ of which is clamped to the shaft at LZ2. Above roller Z there ismounted on shaft b a coperating roller e, which is held yieldinglyagainst roller ZZ in manner hereinafter de- Roller e is provided with anouter circumferential flange e', that projects slightly beyond the faceof roller d, Fig. 7, the distance between the flange and the rollercorresponding substantially to the thickness of blank A.

In order to present the blank to the rollers,

a feed-table f is arranged in front thereof and at an elevationcorresponding substantially to the top of roller (Z, Fig. 5. The blankis guided along table f to the roller-pass by an outerflangef' and aninner adjustable rail g, Which extends with its end into acircumferential groove e2 of roller c. The blank is held against thesurface of table f by a transverse keeper g on rail g, beneath which theblank is inserted. The distance between flange f and the inner face offlange e determines the width of the flange A. In order to set themachine to form flanges of different widths, the table is laterallyadjustable by means of slots f, accommodating clampscrews f3.

By the means described the blank A when passed between the rollers Z ande will be provided along its outer edge with a flange A2, Fig. 7. Tobend the band thus flanged into a circular form, there is arranged backof roller Z a curved deflector t, the inner Working face t of which isconcentric to roller (Z. The deflector i projects above the roller-passto grasp the front of band A and passes with its upper end into acircumferential groove e" of roller e.

As the band emerges from the pass it will by deflector L be bentconcentric to roller Z and will thus be taken along and wound upon thesame, Fig. 6. A stripper Z, hav ing a pointed and beveled working edgec, that projects across the end of roller CZ, is encountered by theflange A2 of band A when the latter has partly encompassed rol-ler (Z.In this way the band properly flanged and bent is thrown laterally offthe roller and into a suitable receptacle. (Not shown.)

The rollers cZ and e should be driven with the same circumferentialspeed, to which effect the diameters of gear-Wheels a b/ correspond tothose of rollers Z e, respectively.

The roller e, as has already been stated, is held yielding'ly againstroller ZZ, so that the blank is taken along by frictional contact withthe rollers. To e`ect this result, one of the shafts is journaled inyielding bearings, the' drawings showing the shaft Z) to be sojournaled. As represented, the shaft b turns in bearings j and 7c. Thebearing 7' is flanged, as at j', and is slidable between upright rails Bof frame B. A set-screw f2, tapped into a fixed cross-piece B2, bearsagainst a plate jl, between which and bearing j a cushion j* is 2. Amachine for shaping cap-bands provided with a cylindrical roller, acooperating flanged roller, a deector, and a stripper having a pointedand beveled Working edge projectng across the end of the cylindricalroller, substantially as specied.

vSigned by me at New York city, Manhattan, New York, this 5th day ofMay, 1905.

JULIUS BRENZINGER.

l/Vitnesses:

ARTHUR ZUMPE, FRANK y. BRIESEN.

